As the question is a bit unclear it is difficult to say what this relates to. I assume you are talking about a psychological/social experiment of sorts. But I still think this is a Dad joke and the subject is Australian fauna, more likely Kangaroos or Emus, which cannot walk backwards or talk.
'olleh'
Language is a system of communication that uses words and symbols to convey meaning. It allows individuals to express thoughts, emotions, and ideas to others. There are thousands of languages spoken around the world, each with its own unique grammar, vocabulary, and structure.
Hello comes from Hell in alien language
You say "hello" in the monkey language by throwing a banana to the person that you are greeting.
hello my dear friends
In Kashmiri language, "hello" is said as "salaam aleikum".
Christianity has no uniform language, so a Christian would hello in the language of their home country.
Ave is 'hello' in latin.
"Hello" in Zulu is "Sawubona".
npnbet is Russia and translit: Hello
In Filipino, you say "hello" as "kamusta."
How do you say hello in Singapore language